Convert Up and Down Using algorithms to fill in the missing lines, HDTV sets upconvert DVD, cable and satellite broadcasts to 720p, 1080i or 1080p, whichever HD resolution the TV supports. HD programs are broadcast in 720p and 1080i, and 720p HDTV sets downconvert 1080i broadcasts to 720p. In addition, HDTV sets provide numerous zoom and stretch modes to accommodate standard TV formats, which exist in the form of DVDs and old movies (see HDTV display modes). See HD formats.

HD Ready, Capable, Built In or Integrated An "HD Ready" or "HD Capable" TV set means that it can display 720 progressive lines of resolution (720p) at minimum and can scale up lower and scale down higher-resolution signals to fit the screen. HD Ready requires an HD set-top box from the cable or satellite company to receive HD programs.

"HD Built In" or "integrated HDTV" refers to a TV with a built-in HD tuner for capturing HD broadcasts over the air.

HD Has Been Around Awhile Since the turn of the century, consumers have become familiar with high definition TV; however, HD was available years before that. Japan experimented with HD formats in the 1970s and 1980s and was the first to broadcast an 1125-line signal for expensive, large-screen TV sets in the early 1990s. Both Japan and Europe's initial HD formats were analog.

When a wide-screen movie is rendered intact on earlier 4:3 TVs (left), top and bottom black bars are displayed ("letterbox" effect). However, HDTVs have a 16:9 aspect ratio that shows movies without any bars or with much thinner ones (see HDTV display modes). (Image courtesy of Intergraph Computer Systems.)

Designed especially for discriminating home theater consumers who want the best of the best in video and audio performance, the 42-inch and 47-inch Olevia Signature LCD HDTVs feature the award-winning Silicon Optix Realta(R) video processor with HQV(TM) powered by Teranex for delivering exceptionally crisp, rich, vibrant images with unsurpassed clarity.

MicroDisplay Corporation announced today from the Consumer Electronics Show (CES) that industry stalwarts AKAI and Memorex have signed on as customers of MicroDisplay's HDTVs, powered by MicroDisplay's unique and proprietary 1080p LCOS digital projection imaging technology.

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